FME® Workbench Transformers Quick-Reference ... - Consortech

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Deaggregator Decomposes an aggregate feature into its components. FeatureHolder Stores incoming features until they have all arrived and then releases them in their original order. FeatureMerger Moves the attributes and/or geometry from one feature to another feature. NeighborFinder Finds the closest CANDIDATE feature within some maximum distance of at each BASE feature. The maximum distance is measured in the units of coordinates of the input features. NeighborhoodAggregator Creates aggregates of features based on their proximity to each other. NeighborPairFinder Finds the closest two CANDIDATE features within some maximum distance of each BASE feature and some minimum separation in heading between the CANDIDATEs and the BASE. Sorter Sorts features by an attribute’s value. DATABASE – These transformers allow interaction with external databases. Data can be extracted from databases and merged into the feature stream, or merged onto features. You can also execute arbitrary SQL statements. ArcSDEQuerier Performs queries on an ArcSDE spatial database. The queries can have both a spatial and a nonspatial component. Joiner Joins attributes from an external database to other spatial or nonspatial features as they are processed through a translation. Most popular databases are supported. OracleQuerier Performs spatial queries against an Oracle Spatial database. The queries can have both a spatial component and a nonspatial component. SchemaMapper Maps the schema (attributes and feature types) of features based on a schema mapping table. SQLExecutor Runs an arbitrary SQL statement against a database. FME Workbench Transformers Quick-Reference Booklet 5
FILTERS – These transformers perform tests on feature geometry and/or attributes, and allow the feature to be routed to different destinations depending on the outcome of the test. 6 AggregateFilter Routes features differently depending on whether their geometry consists of an aggregate of several primitive geometries or a simple, single piece of geometry. AttributeFilter Routes features to different output ports depending on the value of an attribute. AttributeRangeFilter Performs a lookup on a range-based lookup table and routes the feature to the appropriate output port. ChangeDetector Detects changes between two sets of input features. ConvexityFilter Determines whether areas, surfaces, and solids are convex or concave. A polygon is simple when it is not self-intersecting and has a non-zero area. Simple polygons are convex if every internal angle is less than or equal to 180 degrees. All other polygons are considered concave. DuplicateRemover Detects duplicate features based on the value of a key attribute. FeatureTypeFilter Routes input features to different output ports based on their original feature type. GeometryFilter Routes a feature based on its geometry type. GeometryOGCValidator Evaluates the simplicity or validity of a geometry feature and routes the feature according to the outcome of the tests. IndividualGeometriesFilter Filters aggregate features based on the type of aggregate. Matcher Detects features that are matches of each other. Features are declared to match when they have matching geometry, matching attribute values, or both. PlanarityFilter Filters features based on their planarity. To be planar, a geometry must have all of its points situated in the same plane. Sampler Preserves either a total number of features or a sampling of features, depending on the Sampling Type selection.
Page 1 and 2: FME ® Workbench Transformers Quick
Page 3 and 4: What is a Transformer? A transforme
Page 5 and 6: 2 AreaCalculator Calculates the are
Page 7: COLLECTORS - These transformers ope
Page 11 and 12: 8 Clipper Performs a geometric clip
Page 13 and 14: PointOnAreaOverlayer Performs an ov
Page 15 and 16: AttributeExposer Exposes hidden att
Page 17 and 18: MeasureSetter Sets measures on a po
Page 19 and 20: 3DPointReplacer Replaces the geomet
Page 21 and 22: Chopper Ensures that all features o
Page 23 and 24: Generalizer There are four algorith
Page 25 and 26: PartCounter Returns the number of p
Page 27 and 28: RasterBandMinMaxExtractor Extracts
Page 29 and 30: AttributeSplitter Splits a selected
Page 31 and 32: SurfaceModeller Builds and queries
Page 33 and 34: FMEServerWorkspaceRunner Submits FM
Page 35 and 36: CSGEvaluator (3D category), 1 Curve
Page 37 and 38: P ParameterFetcher (Infrastructure
Page 40: Suite 2017, 7445 - 132 Street, Surr

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